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-rw-r--r--pkg/tcpip/network/arp/arp.go17
1 files changed, 12 insertions, 5 deletions
diff --git a/pkg/tcpip/network/arp/arp.go b/pkg/tcpip/network/arp/arp.go
index ea1acba83..7f27a840d 100644
--- a/pkg/tcpip/network/arp/arp.go
+++ b/pkg/tcpip/network/arp/arp.go
@@ -99,11 +99,7 @@ func (e *endpoint) WriteHeaderIncludedPacket(r *stack.Route, pkt *stack.PacketBu
}
func (e *endpoint) HandlePacket(r *stack.Route, pkt *stack.PacketBuffer) {
- v, ok := pkt.Data.PullUp(header.ARPSize)
- if !ok {
- return
- }
- h := header.ARP(v)
+ h := header.ARP(pkt.NetworkHeader)
if !h.IsValid() {
return
}
@@ -209,6 +205,17 @@ func (*protocol) Close() {}
// Wait implements stack.TransportProtocol.Wait.
func (*protocol) Wait() {}
+// Parse implements stack.NetworkProtocol.Parse.
+func (*protocol) Parse(pkt *stack.PacketBuffer) (proto tcpip.TransportProtocolNumber, hasTransportHdr bool, ok bool) {
+ hdr, ok := pkt.Data.PullUp(header.ARPSize)
+ if !ok {
+ return 0, false, false
+ }
+ pkt.NetworkHeader = hdr
+ pkt.Data.TrimFront(header.ARPSize)
+ return 0, false, true
+}
+
var broadcastMAC = tcpip.LinkAddress([]byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff})
// NewProtocol returns an ARP network protocol.